This slow cooker pork with onion herb sauce is the kind of low-effort, big-payoff dinner you can set up in the morning and come home to at night—juicy, pull-apart tender pork with a savory, herby onion gravy.
Why you’ll love this slow cooker pork
- Hands-off cooking: the slow cooker does the work.
- Family-friendly flavor from onions, herbs, and a rich pan-style sauce.
- Versatile for serving: over mashed potatoes, noodles, rice, or piled into sandwiches.
- Great for meal prep: reheats well and tastes even better the next day.
Ingredients you’ll need
- Pork: pork shoulder (Boston butt) for shreddable results, or pork loin for sliceable lean pork.
- Onions: yellow onions cook down sweet and saucy.
- Garlic: fresh is best, but jarred works in a pinch.
- Herbs: a mix of dried thyme and rosemary (or Italian seasoning) for a classic onion-herb profile.
- Broth: chicken broth (or pork broth) for a rich base.
- Umami + tang: Worcestershire sauce and a little Dijon mustard (optional but recommended).
- Thickener: cornstarch or flour to finish the sauce.
- Salt, black pepper, and a little oil for browning (optional).
Best cut of pork for the slow cooker
If you want fall-apart, shreddable pork, use pork shoulder. It has enough fat and connective tissue to stay moist through a long cook. If you prefer neat slices and a leaner result, pork loin works—just be careful not to overcook it.
How to make slow cooker pork with onion herb sauce
- Optional sear: Pat the pork dry, season with salt and pepper, then sear in a hot skillet with a little oil until browned on all sides. This adds deeper flavor, but you can skip it on busy days.
- Build the base: Add sliced onions to the slow cooker. Nestle the pork on top.
- Mix the sauce: Stir together broth, garlic, herbs, Worcestershire, and Dijon (if using). Pour around the pork.
- Cook low and slow: Cover and cook until the pork is very tender (time depends on cut and size; see timing below).
- Finish the sauce: Remove pork to a tray. Skim excess fat if desired. Thicken the onion-herb liquid with a cornstarch slurry (or flour slurry) on high until glossy.
- Serve: Slice or shred the pork and spoon the onion herb sauce over the top.
Cook times (general guide)
- Pork shoulder (3–5 lb): 8–10 hours on LOW or 5–6 hours on HIGH, until shreddable.
- Pork loin (2–4 lb): 5–7 hours on LOW or 3–4 hours on HIGH, until just tender and sliceable.
Slow cookers vary. The pork is ready when it’s tender enough to shred easily (shoulder) or slices without resistance (loin). If it’s tough, it needs more time.
How to thicken the onion herb sauce
For a silky sauce, use cornstarch: mix 1 tablespoon cornstarch with 1 tablespoon cold water, stir into the hot cooking liquid, and cook 10–15 minutes on HIGH. For a more gravy-like finish, use flour: whisk 2 tablespoons flour with 2 tablespoons cold water (or broth) until smooth, then cook until thickened.
Serving ideas
- Over mashed potatoes with extra sauce.
- On buttered egg noodles or rice.
- On toasted rolls with provolone for an easy sandwich.
- With roasted carrots, green beans, or a crisp salad.
Storage and reheating
- Refrigerate: Store pork and sauce together in an airtight container for up to 4 days.
- Freeze: Freeze in portioned containers for up to 3 months. Thaw overnight in the fridge.
- Reheat: Warm gently on the stovetop with a splash of broth if needed, or microwave in short bursts, stirring between.
Helpful tips for best results
- Don’t lift the lid while cooking—heat loss adds time.
- Slice onions evenly so they melt into the sauce.
- Season at the end: once reduced/thickened, the sauce can taste saltier, so adjust after thickening.
- If you want extra-herby flavor, stir in chopped parsley right before serving.
Slow Cooker Pork with Onion Herb Sauce
Yield: 6–8 servings
Prep time: 15 minutes
Cook time: 6–10 hours (depending on cut)
Equipment: 6-quart slow cooker
Ingredients
- 3–4 lb pork shoulder (preferred) or pork loin
- 1 1/2 tsp kosher salt, plus more to taste
- 1/2 tsp black pepper
- 1 tbsp oil (optional, for searing)
- 2 large yellow onions, thinly sliced
- 4 cloves garlic, minced
- 1 1/2 cups chicken broth
- 1 tbsp Worcestershire sauce
- 1 tsp dried thyme
- 1 tsp dried rosemary (crushed) or 2 tsp Italian seasoning
- 1 tsp Dijon mustard (optional)
- 1 tbsp cornstarch + 1 tbsp cold water (for thickening), or 2 tbsp flour + 2 tbsp water
Instructions
- Season pork all over with salt and pepper.
- If searing: heat oil in a skillet over medium-high heat and brown pork on all sides, 2–3 minutes per side. Transfer to slow cooker.
- Add onions to the slow cooker (under and around the pork). Add garlic.
- Whisk broth, Worcestershire, thyme, rosemary (or Italian seasoning), and Dijon (if using). Pour around the pork.
- Cover and cook until tender: pork shoulder 8–10 hours on LOW (or 5–6 on HIGH); pork loin 5–7 hours on LOW (or 3–4 on HIGH).
- Transfer pork to a plate and tent with foil. Skim excess fat from the slow cooker liquid if desired.
- To thicken: whisk cornstarch with cold water, stir into the slow cooker liquid, and cook on HIGH 10–15 minutes until thickened (or use the flour slurry and cook until thick).
- Slice or shred pork, return to the sauce (or serve with sauce spooned over top). Taste and adjust seasoning.
